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Local businessMedium1 to 2 weekendsUnder $100Web app

Laundry Ping

Laundromat customers scan a QR code and get a text when their cycle ends.

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The idea

Each washer and dryer at a laundromat gets a QR sticker. Customers scan it, pick their cycle, and get a text a few minutes before it finishes so they can run errands. Owners get a simple view of machine use and can mark machines out of order.

Who it is for
Owners of neighborhood laundromats
How it makes money
Monthly fee per location
Suggested stack
Next.js, MySQL, Twilio for text messages
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web app called Laundry Ping. Start with an owner dashboard to add machines with fields: machine number, type (washer or dryer), default cycle minutes and status, plus a page that prints a QR sticker for each machine.

PROMPT 2 OF 3

When a customer scans a QR code, show a mobile page for that machine where they enter a phone number and confirm the cycle length. Save a session with machine, phone, start time and end time, and use Twilio to text them 5 minutes before the end and again at the end.

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PROMPT 3 OF 3

Add an owner page showing machine use per day and a way to mark a machine out of order so scans show a notice. Add Stripe subscription billing per location and an optional promo line in the texts.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Laundry PingEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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